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CN-224226861-U - Hydraulic composite module for dewatering active sludge

CN224226861UCN 224226861 UCN224226861 UCN 224226861UCN-224226861-U

Abstract

The utility model relates to an activated sludge dewatering hydraulic composite module which comprises an extrusion frame, wherein a lower underframe is arranged on the extrusion frame, a lower top cylinder piece is arranged on the lower underframe, an upper die clamping hydraulic cylinder is arranged above the extrusion frame, an opening and closing die is arranged between the upper die clamping hydraulic cylinder and the lower top cylinder piece, the opening and closing die comprises a middle die piece connected with the lower top cylinder piece at the lower end and an upper die piece connected with the upper die clamping hydraulic cylinder, and a middle die piece is arranged between the lower die piece and the upper die piece.

Inventors

  • WANG DONG
  • WANG XIAOLIN
  • CHEN XIAOLIN
  • LIU FENGQIAO

Assignees

  • 青岛凯昇环保设备制造有限公司

Dates

Publication Date
20260512
Application Date
20250512

Claims (10)

  1. 1. The hydraulic composite module for dewatering the activated sludge is characterized by comprising an extrusion frame (302), wherein a lower underframe (303) is arranged on the extrusion frame (302); a lower top cylinder part (304) is arranged on the lower underframe (303); An upper die closing hydraulic cylinder (305) is arranged above the extrusion frame (302); An opening and closing die is arranged between the upper die closing hydraulic cylinder (305) and a workbench of the extrusion frame (302); The die opening and closing device comprises a middle die part (328) arranged on the extrusion frame (302) and connected with a lower top cylinder part (304) at the lower end and an upper die part (309) connected with an upper die closing hydraulic cylinder (305); A lower die member (313) is disposed below the middle die member (328).
  2. 2. The activated sludge dewatering hydraulic composite module as claimed in claim 1, wherein the filter cloth member (301) has an upstream section and a downstream section; the upstream section passes between the upper die member (309) and the middle die member (328); The descending section passes between the lower die member (313) and the middle die member (328).
  3. 3. The activated sludge dewatering hydraulic composite module as claimed in claim 2, wherein a hollow cavity (317) is provided in the middle of the middle mold member (328); connecting flange groups A (318) and B (321) are respectively arranged at two ends of the hollow cavity (317); The connecting flange group A (318) and the connecting flange group B (321) are positioned at two sides of the filter cloth piece (301); a dehydration filter pressing cylinder (306) is connected to the side of the connecting flange group A (318) through a connecting sleeve A (315); A feed pipe (308) is connected to the side of the connecting flange group B (321).
  4. 4. The activated sludge dewatering hydraulic composite module as claimed in claim 3, wherein a support inner sleeve hole (322) is connected in the connecting flange group B (321) through an inner rib; A feed return valve is arranged in the support inner sleeve hole (322); The feed back valve includes a valve stem assembly (323) disposed in a support inner sleeve bore (322) by a valve stem spring (324).
  5. 5. The activated sludge dewatering hydraulic composite module as claimed in claim 3, wherein an upper filter plate (312) is arranged between the upper surfaces of the connecting flange group A (318) and the connecting flange group B (321) and the lower surface of the upper die member (309); A lower filter plate (316) is arranged between the lower surfaces of the connecting flange group A (318) and the connecting flange group B (321) and the upper surface of the lower die piece (313); the corresponding edges of the lower filter plate (316) and the upper filter plate (312) are connected with the corresponding surfaces of the middle mold piece (328).
  6. 6. The activated sludge dewatering hydraulic composite module as claimed in claim 5, wherein a lower filter plate (316), an upper filter plate (312), and a middle mold member (328) are used to envelop the hollow cavity (317); The lower filter plate (316) and the upper filter plate (312) are provided with through holes; An upper support plate (307) and a lower support plate (311) are respectively provided on the upper portion of the upper filter plate (312) and the lower portion of the lower filter plate (316).
  7. 7. The activated sludge dewatering hydraulic composite module as claimed in claim 6, wherein a nozzle (319) is arranged on the connecting flange group A (318), and an oil filler hole part (326) corresponding to the nozzle (319) is arranged on the connecting sleeve A (315); A negative pressure drain (327) is provided on the upper die member (309) and the lower die member (313) in communication with the hollow cavity (317).
  8. 8. The activated sludge dewatering hydraulic composite module as claimed in claim 6, wherein an upper elastic ejector rod (310) and a lower elastic ejector rod (314) are respectively arranged between the upper die member (309) and the middle die member (328) and between the middle die member (328) and the lower die member (313); A cloth pressing platform (325) is arranged on the connecting flange group B (321) and is used for bearing the downlink section; The upper die closing hydraulic cylinder (305) is connected with the upper supporting plate (307); The workbench of the extrusion frame (302) is connected with the lower supporting plate (311); a guide polish rod (320) is arranged at the lower end of the middle die piece (328); The lower top cylinder part (304) acts on the guide polish rod (320) through the lower connecting frame (329); The upper die piece (309) moves downwards under the pressure of the guide polish rod (320); a lower elastic ejector rod (314) is arranged between the lower supporting plate (311) and the lower die piece (313); An upper resilient ram (310) is provided between the upper support plate (307) and the upper mould member (309).
  9. 9. The activated sludge dewatering hydraulic composite module as claimed in claim 8, wherein the upstream section of the filter cloth member (301) is located between the upper filter plate (312) and the middle die member (328); the filter cloth (301) descending section is positioned between the lower filter plate (316) and the middle die (328); The upper elastic ejector rod (310) and the lower elastic ejector rod (314) are respectively abutted against the uplink section and the downlink section of the filter cloth piece (301); the lower elastic ejector rod (314) generates pressure and is used for controlling Y-axis direction deflection of the descending section of the filter cloth (301) between the lower surface of the middle die piece (328) and the lower elastic ejector rod (314); The upper elastic ejector rod (310) generates pressure and is used for controlling Y-axis direction deflection of the upper section of the filter cloth (301) between the upper surface of the middle die piece (328) and the upper elastic ejector rod (310); The upper die member (309), the upper elastic ejector rod (310), and the upper filter plate (312) are combined, and the upper die member and the middle die member (328) are lifted and lowered.
  10. 10. The activated sludge dewatering hydraulic composite module as claimed in claim 9, wherein the upper elastic ejector rod (310) and the lower elastic ejector rod (314) are respectively in pressure contact with the upper section and the lower section of the filter cloth (301) and the surfaces of the corresponding middle mold pieces (328) before the upper mold piece (309) and the lower mold piece (313) are assembled.

Description

Hydraulic composite module for dewatering active sludge Technical Field The utility model relates to an activated sludge dewatering hydraulic composite module. Background Conventional activated sludge dewatering, sometimes by centrifugation, but it causes the sludge to clog the centrifugal mesh, requiring regular cleaning of the mesh. Screw extrusion is sometimes used, but it increases the amount of abrasion and falls down as it is extruded. How to realize continuous work, reduce abrasion, improve dehydration efficiency and improve the existing dehydration scheme becomes a technical problem to be solved urgently. Disclosure of utility model The technical problem to be solved by the utility model is to provide an activated sludge dewatering hydraulic composite module in general. In order to solve the problems, the utility model adopts the following technical scheme: In order to realize automatic dehydration, the hydraulic composite module for dehydrating activated sludge comprises an extrusion frame, wherein a lower underframe is arranged on the extrusion frame; A lower top cylinder piece is arranged on the lower underframe; An upper die closing hydraulic cylinder is arranged above the extrusion frame; the upper die closing hydraulic cylinder and the lower top cylinder piece are provided with a die opening and closing; The opening and closing die comprises a lower die part fixed on the workbench of the extrusion frame and an upper die part connected with the upper die closing hydraulic cylinder; a middle mold member is disposed between the lower mold member and the upper mold member. As a further improvement of the above technical scheme: In order to improve the dehydration performance of the activated sludge, the filter cloth piece is convenient to clean, the filter cloth piece is provided with an uplink section and a downlink section, and the positions of the filter cloth are switched along with the periodic operation of opening and closing the die; The ascending section passes between the upper die piece and the middle die piece; The downstream section passes between the lower die member and the intermediate die member. A hollow cavity is arranged in the middle of the middle die piece; The two ends of the hollow cavity are respectively provided with a connecting flange group A and a connecting flange group B; the connecting flange group A and the connecting flange group B are positioned at two sides of the filter cloth piece; The side of the connecting flange group A is connected with a dewatering pressure filter cylinder through a connecting sleeve A; And a feeding pipe is connected to the side B of the connecting flange group. In order to realize unidirectional mud feeding, a supporting inner sleeve hole is connected in the connecting flange group B through an inner rib; a feed check valve is arranged in the support inner sleeve hole; The feed check valve includes a valve stem assembly disposed in a support bore by a valve stem spring. In order to increase the water passing area, an upper filter plate is arranged between the upper surfaces of the connecting flange group A and the connecting flange group B and the lower surface of the upper die piece; A lower filter plate is arranged between the lower surfaces of the connecting flange group A and the connecting flange group B and the upper surface of the lower die piece; And the corresponding edges of the lower filter plate and the upper filter plate are sealed and attached after being matched with the corresponding surfaces of the middle die piece. In order to form an extrusion space, the lower filter plate, the upper filter plate and the middle die piece are used for enveloping the hollow cavity; The lower filter plate and the upper filter plate are provided with through holes; an upper support plate and a lower support plate are respectively arranged on the upper part of the upper filter plate and the lower part of the lower filter plate. In order to realize lubrication, a nozzle tip is arranged on the connecting flange group A, and an oil filling hole part corresponding to the nozzle tip is arranged on the connecting sleeve A; And the upper die piece and the lower die piece are provided with negative-pressure water outlets communicated with the hollow cavity. In order to prevent the filter cloth from centering and shifting when the filter cloth is tensioned, an upper elastic ejector rod and a lower elastic ejector rod are respectively arranged between the upper die piece and the middle die piece and between the middle die piece and the lower die piece; A cloth pressing platform is arranged on the connecting flange group B and used for bearing the downlink section; The upper die closing hydraulic cylinder is connected with the upper supporting plate; the workbench of the connecting frame is connected with the lower supporting plate; The middle die piece is movably arranged on the guide polish rod; the lower elastic ejector rod is arranged on the lower